Table 3 Cardiovascular response to moderate intensity submaximal steady-state exercise
From: Sex differences in cardiovascular function during submaximal exercise in humans
All | Male | Female | p-value | |
|---|---|---|---|---|
Cardiovascular | ||||
VO2 (mL/min) | 1284.0 ± 43.0 | 1545.7 ± 48.1 | 1038.2 ± 33.7 | <0.01 |
VCO2 (mL/min) | 1161.7 ± 39.4 | 1403.3 ± 43.4 | 934.7 ± 30.9 | <0.01 |
VO2 (mL/kg/min) | 17.7 ± 3.0 | 19.0 ± 3.3 | 16.5 ± 2.0 | <0.01 |
QI (L/min/m2) | 5.8 ± 0.8 | 6.2 ± 0.8 | 5.4 ± 0.6 | <0.01 |
SVI (mL/m2) | 45.8 ± 9.1 | 50.4 ± 9.2 | 41.3 ± 6.4 | <0.01 |
HR (mL/min) | 128.1 ± 13.2 | 124.6 ± 13.7 | 131.4 ± 12.1 | 0.04 |
AVO2 Difference (mL O2/100 mL blood) | 11.9 ± 1.4 | 12.6 ± 1.2 | 11.2 ± 1.2 | <0.01 |
SBP (mm Hg) | 174.9 ± 27.5 | 188.8 ± 23.5 | 161.8 ± 24.7 | <0.01 |
DBP (mm Hg) | 78.5 ± 10.1 | 82.2 ± 10.2 | 74.9 ± 8.6 | 0.01 |
MAP (mm Hg) | 110.6 ± 14.7 | 117.7 ± 13.2 | 103.9 ± 13.0 | <0.01 |
SVRI (dyn*sec/cm5/m2) | 1556.1 ± 233.2 | 1574.4 ± 243.8 | 1564.3 ± 225.3 | 0.72 |
Hemoglobin (gh/dL) | 15.4 ± 1.4 | 16.2 ± 1.1 | 14.0 ± 0.7 | <0.01 |
SOT (mL/min/m2) | 1150.1 ± 226.3 | 1315.7 ± 187.6 | 994.5 ± 127.7 | <0.01 |
RPE | 10.4 ± 1.3 | 10.4 ± 1.4 | 10.4 ± 1.1 | 0.58 |
Blood gases | ||||
PaO2 (mm Hg) | 97.7 ± 7.1 | 97.2 ± 6.0 | 98.1 ± 8.0 | 0.56 |
PaCO2 (mm Hg) | 37.5 ± 2.7 | 38.4 ± 2.6 | 36.6 ± 2.4 | <0.01 |
CaO2 (mL/100 mL) | 19.9 ± 1.8 | 21.3 ± 1.4 | 18.5 ± 0.9 | <0.01 |
Catecholamines & lactate | ||||
Epinephrine (pg/mL) | 100.8 ± 37.9 | 113.2 ± 35.3 | 89.1 ± 37.1 | 0.01 |
Norepinephrine (pg/mL) | 630.1 ± 163.3 | 693.2 ± 172.4 | 570.88 ± 130.8 | 0.02 |
Lactate (mM) | 3.00 ± 1.269 | 3.22 ± 1.24 | 2.78 ± 1.32 | 0.17 |
Lactate fold change from baseline | 3.3 ± 2.0 | 3.4 ± 2.1 | 3.1 ± 1.9 | 0.52 |